a(n) = Permanent(T(2*n + 1)) where T(n) is the tangent matrix defined in A346831. Bisection of A347598 (odd indices).
A347597
a(n) = Permanent(T(2*n + 1)) where T(n) is the tangent matrix defined in A346831. Bisection of A347598 (odd indices).
Terms
- a(0) =0a(1) =2a(2) =-12a(3) =230a(4) =-6936a(5) =316682a(6) =-20359332a(7) =1754340590a(8) =-195242324016
External references
- oeis: A347597